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Trace element distributions in the chalcopyrite wall of a black smoker chimney: insights from laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS)

Trace element distributions in the chalcopyrite wall of a black smoker chimney: insights from laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS)
Trace element distributions in the chalcopyrite wall of a black smoker chimney: insights from laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS)
The thin walls of young black smoker chimneys experience steep physico-chemical gradients during active venting of hydrothermal fluid, and these gradients control trace element precipitation within those walls. Here, we utilise a combination of high sensitivity ICPMS and UV laser ablation (resolution of better than 30 ?m) to demonstrate the existence of non-random V, Ag, In, Te, Ba, Au, Pb and U distributions within the chalcopyrite wall of an immature black smoker chimney. The data are the first of their kind to be produced for black smoker chimney walls. Distributions of In and Te are attributed to preferential incorporation into lattices at elevated temperature. Enrichments of U and V derived from seawater are the product of redox immobilisation on sulphide surfaces. The distributions of Au, Ag, Pb and Ba may be related to interactions at the hydrothermal fluid–seawater mixing front; however, comparison of distribution data with reaction-transport models of chimney walls suggest a possible pH control on precipitation. These data illustrate the power of the LA–ICP–MS method, and such spatially resolved data have the potential to constrain models of element precipitation both in chimneys and in associated mounds.
trace elements, sulfides, hydrothermal vents, laser methods, inductively coupled plasma methods, mass spectroscopy
0012-821X
335-345
Butler, I.B.
9a1c2b72-9bcc-4ed2-9e5a-a2805caeca5e
Nesbitt, R.W.
6a124ad1-4e6d-4407-b92f-592f7fd682e4
Butler, I.B.
9a1c2b72-9bcc-4ed2-9e5a-a2805caeca5e
Nesbitt, R.W.
6a124ad1-4e6d-4407-b92f-592f7fd682e4

Butler, I.B. and Nesbitt, R.W. (1999) Trace element distributions in the chalcopyrite wall of a black smoker chimney: insights from laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS). Earth and Planetary Science Letters, 167 (3-4), 335-345. (doi:10.1016/S0012-821X(99)00038-2).

Record type: Article

Abstract

The thin walls of young black smoker chimneys experience steep physico-chemical gradients during active venting of hydrothermal fluid, and these gradients control trace element precipitation within those walls. Here, we utilise a combination of high sensitivity ICPMS and UV laser ablation (resolution of better than 30 ?m) to demonstrate the existence of non-random V, Ag, In, Te, Ba, Au, Pb and U distributions within the chalcopyrite wall of an immature black smoker chimney. The data are the first of their kind to be produced for black smoker chimney walls. Distributions of In and Te are attributed to preferential incorporation into lattices at elevated temperature. Enrichments of U and V derived from seawater are the product of redox immobilisation on sulphide surfaces. The distributions of Au, Ag, Pb and Ba may be related to interactions at the hydrothermal fluid–seawater mixing front; however, comparison of distribution data with reaction-transport models of chimney walls suggest a possible pH control on precipitation. These data illustrate the power of the LA–ICP–MS method, and such spatially resolved data have the potential to constrain models of element precipitation both in chimneys and in associated mounds.

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More information

Published date: 15 April 1999
Keywords: trace elements, sulfides, hydrothermal vents, laser methods, inductively coupled plasma methods, mass spectroscopy
Organisations: Geochemistry

Identifiers

Local EPrints ID: 361626
URI: http://eprints.soton.ac.uk/id/eprint/361626
ISSN: 0012-821X
PURE UUID: 879c3d44-65d4-49dd-a545-96b808b75d82

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Date deposited: 28 Jan 2014 11:38
Last modified: 16 Jul 2019 21:13

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